Brakes
Brakes are one of those parts of a car that most drivers only think about once something starts to feel wrong. That statement sounds obvious, but it's worth pausing on, because the condition of discs, pads, and brake lines really does get put off more often than it should. Yet it's the brake system that's responsible for a car being able to stop safely at all. Below you'll find the basics of how a brake system works, the main types in use today, and what to keep in mind when it comes to upkeep.
How Does a Brake System Work?
A typical brake system is made up of a few core components: brake discs, pads, calipers, brake lines, and the brake master cylinder. On older vehicles, and often still on the rear axle, brake drums are used instead of discs. The job of the whole system is to convert the vehicle's kinetic energy into heat, which is what slows the car down and brings it to a stop.
When the brake pedal is pressed, a piston inside the master cylinder builds up pressure in the brake fluid throughout the system. Because brake fluid is essentially incompressible, that pressure is transmitted almost instantly through the brake lines to the caliper at each wheel. The calipers then squeeze the pads against the discs (or, in drum systems, the shoes against the drum), and the resulting friction is what slows the vehicle.
Types of Brake Systems
Hydraulic systems are by far the most common today, handling braking duties on the vast majority of passenger cars. Pedal force is transmitted through the brake fluid, allowing braking force to be distributed evenly across all four wheels.
Alongside hydraulic systems, mechanical setups using cables or linkages still exist, mainly in parking brakes rather than as the primary braking system these days. Trucks and buses commonly use pneumatic (air) brake systems, while some electric and hybrid vehicles pair conventional braking with regenerative systems that recover energy as the car slows down.
What Brake Parts Does This Range Cover?
The range covers everything needed for a straightforward like-for-like replacement as well as a full upgrade: brake discs and brake pads for routine servicing, and brake shoes for vehicles that still rely on drums on the rear axle. Brake calipers are available for when a worn, seized, or leaking unit needs replacing rather than rebuilding, and brake kits bundle discs and pads together to make servicing both ends of the car in one go simpler.
For drivers after more than a standard replacement, big brake kits combine larger discs, calipers, and pads into a single upgrade package for improved stopping power, while brake conversion kits allow an entirely different brake setup to be fitted, most commonly converting a rear axle from drums to discs. Rounding out the range are brake hoses, which carry pressurised brake fluid from the master cylinder to each caliper, and brake boosters (brake servos), which multiply pedal force so the driver doesn't need to press anywhere near as hard to bring the car to a stop.
You'll find trusted names behind these parts, including DBA Brakes Australia discs, Hawk performance brake pads, and Terra Performance pads.
Brake System Maintenance
Regular inspection of the brake system is one of those jobs that really shouldn't be put off — a brake system that isn't working properly is a direct hazard to the driver and everyone else on the road. One of the most important maintenance tasks is replacing the brake fluid, which loses its properties over time and absorbs moisture from the surrounding air, reducing braking performance. Manufacturers typically recommend replacing brake fluid every 2 to 3 years.
It's just as important to check pad thickness and disc condition regularly. Worn pads increase stopping distance, and unevenly worn discs can cause vibration felt through the pedal or steering wheel. Where brake drums are still fitted, they need periodic inspection too — though in practice they tend to last longer than discs.
Summary
The brake system is one of those parts of a car that goes unnoticed day to day — until it starts to fail. Understanding the basics of how it works, along with regular inspection of its condition, is a simple way to make sure the car stops exactly when you need it to. If in doubt, it's always worth having a mechanic check your brakes — a small cost compared to what's at stake.
FAQ
What are the main parts of a brake system?
A typical brake system includes the brake fluid reservoir and master cylinder, brake lines, calipers, discs, and brake pads. On older vehicles, drums and shoes are often used instead of discs, usually on the rear axle. Increasingly, the brake system also works alongside supporting systems such as ABS and brake assist.
What types of brake systems are used today?
The most common setup is a hydraulic disc brake system, used on the vast majority of passenger cars. Drum brakes are still found, mainly on the rear axle of older or more budget-oriented models. Trucks and buses commonly use pneumatic systems, while electric vehicles often pair braking with regenerative systems that recover energy under deceleration.
What should you look for when buying brake parts?
First, check that the part in question — disc, pad, or line — is correct for your specific make, model, and version; your owner's manual or a mechanic can help confirm this if you're unsure. It's also worth buying components from reputable manufacturers to avoid the risk of counterfeit or low-quality parts, and to make sure whatever you choose meets the required safety standards.